When every possible sample with the same number of observations is equally likely to be chosen, the result is called a:
A. simple random sample.
B. stratified random sample.
C. cluster sample.
D. biased sample.
Analysis:
A. Correct. The result is called a simple random sample.
B. Incorrect. The result is called a simple random sample.
C. Incorrect. The result is called a simple random sample.
D. Incorrect. The result is called a simple random sample.
ANSWER : A
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